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Effects of multi-vitamin and mineral supplementation on stress, mild psychiatric symptoms and mood in non-clinical samples: a meta-analysis

Long, Sara Jayne ORCID: https://orcid.org/0000-0003-1284-9645 and Benton, D. 2013. Effects of multi-vitamin and mineral supplementation on stress, mild psychiatric symptoms and mood in non-clinical samples: a meta-analysis. Psychosomatic Medicine 75 , pp. 144-153. 10.1097/PSY.0b013e31827d5fbd

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Abstract

OBJECTIVE: Biochemical processes in the brain affect mood. Minor dietary inadequacies, which are responsible for a small decline in an enzyme's efficiency, could cumulatively influence mood states. When diet does not provide an optimal intake of micronutrients, supplementation is expected to benefit mood. This meta-analysis evaluated the influence of diet supplementation on mood in nonclinical samples. METHODS: Databases were evaluated and studies were included if they considered aspects of stress, mild psychiatric symptoms, or mood in the general population; were randomized and placebo-controlled; evaluated the influence of multivitamin/mineral supplements for at least 28 days. Eight studies that met the inclusion criteria were integrated using meta-analysis. RESULTS: Supplementation reduced the levels of perceived stress (standard mean difference [SMD]=0.35; 95% confidence interval [CI]=0.47-0.22; p=.001), mild psychiatric symptoms (SMD=0.30; 95% CI=0.43-0.18; p=.001), and anxiety (SMD=0.32; 95% CI=0.48-0.16; p<.001), but not depression (SMD=0.20; 95% CI=0.42-0.030; p<.089). Fatigue (SMD=0.27; 95% CI=0.40-0.146; p<.001) and confusion (SMD=0.225; 95% CI=0.38-0.07; p<.003) were also reduced. CONCLUSIONS: Micronutrient supplementation has a beneficial effect on perceived stress, mild psychiatric symptoms, and aspects of everyday mood in apparently healthy individuals. Supplements containing high doses of B vitamins may be more effective in improving mood states. Questions about optimal levels of micronutrient intake, optimal doses, and active ingredients arise.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Development and Evaluation of Complex Interventions for Public Health Improvement (DECIPHer)
Social Sciences (Includes Criminology and Education)
Subjects: R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine
Uncontrolled Keywords: anxiety, depression, minerals, mood, stress, vitamins
Publisher: Lippincott, Williams & Wilkins
ISSN: 10.1097/PSY.0b013e31827d5fbd
Last Modified: 02 Nov 2022 10:08
URI: https://orca.cardiff.ac.uk/id/eprint/97592

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